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<title>CSS Reference: symbols function, invalid</title>
<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
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<div>a.&nbsp;</div>
<div>b.&nbsp;</div>
<div>c.&nbsp;</div>
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<div>a.&nbsp;</div>
<div>b.&nbsp;</div>
<div>c.&nbsp;</div>
<div>d.&nbsp;</div>
<div>e.&nbsp;</div>
<div>f.&nbsp;</div>
